package com.wlm.blogs.web.admin;


import com.wlm.blogs.po.Type;
import com.wlm.blogs.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;
import javax.validation.constraints.NotBlank;

@Controller
@RequestMapping("/admin")
public class TypeController {

    @Autowired
   private TypeService typeService;
    @GetMapping("/types")
    public String types(@PageableDefault(size = 5,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable, Model model)
    {
        model.addAttribute("page",typeService.listType(pageable));
        return "admin/types";
    }

    @GetMapping("/types/input")
    public  String input(Model model)
    {
        model.addAttribute("type",new Type());
    return "admin/types-input";
    }

    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable  Long id, Model model)
    {
        model.addAttribute("type",typeService.getType(id));
        return "admin/types-input";
    }

    @PostMapping("/types")
    public  String post(@Valid Type type, BindingResult result, RedirectAttributes attributes)
    {
        Type type1=typeService.getTypeByName(type.getName());
        if(type1!=null)
        {
            result.rejectValue("name","nameError","该分类名称不能重复");
        }
        if(result.hasErrors())
        {
            return "admin/types-input";
        }
       Type t=typeService.saveType(type);
       if(t==null)
       {
           attributes.addFlashAttribute("message","新增失败");
       }
       else {
           attributes.addFlashAttribute("message","新增成功");
       }
       return "redirect:/admin/types";
    }

    @PostMapping("/types/{id}")
    public  String editPost(@Valid Type type, BindingResult result,@PathVariable  Long id, RedirectAttributes attributes)
    {
        Type type1=typeService.getTypeByName(type.getName());
        if(type1!=null)
        {
            result.rejectValue("name","nameError","该分类名称不能重复");
        }
        if(result.hasErrors())
        {
            return "admin/types-input";
        }
        Type t=typeService.updateType(id,type);
        if(t==null)
        {
            attributes.addFlashAttribute("message","更新失败");
        }
        else {
            attributes.addFlashAttribute("message","更新成功");
        }
        return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes)
    {
           typeService.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
        return "redirect:/admin/types";
    }
}
